Reducing Innumeracy with Natural Frequencies

Gerd Gigerenzer is the Director at the Max Planck Institute for Human Development¹ book “Calculated Risks”² paper on innumeracy³

Natural frequencies instead of probabilities

confusion matrix created into a flow chart give

library(DiagrammeR)

grViz("
      digraph DAG {
      
      # Intialization of graph attributes
      graph [overlap = true]
      
      # Initialization of node attributes
      node [shape = box,
      fontname = Helvetica,
      color = blue,
      type = box,
      fixedsize = false]
      
      # Initialization of edge attributes
      edge [color = green,
      rel = yields]
      
      # Node statements
      'Starting Number'; 'Have Disease'; 'Dont Have Disease';
      
      # Edge statements
      'Starting Number'->'Have Disease';'Starting Number'-> 'Dont Have Disease';
      }
      ")

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1. https://www.mpib-berlin.mpg.de/en/staff/gerd-gigerenzer↩

2. http://www.goodreads.com/book/show/720043.Calculated_Risks↩

3. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC200816/↩